<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="en">
<head>
<title>Source code</title>
<link rel="stylesheet" type="text/css" href="../../../../../stylesheet.css" title="Style">
</head>
<body>
<div class="sourceContainer">
<pre><span class="sourceLineNo">001</span><a name="line.1"></a>
<span class="sourceLineNo">002</span>/*<a name="line.2"></a>
<span class="sourceLineNo">003</span> * Copyright (C) 2014 Archie L. Cobbs. All rights reserved.<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * $Id: AbstractValue.html 878 2015-04-17 01:32:03Z archie.cobbs $<a name="line.5"></a>
<span class="sourceLineNo">006</span> */<a name="line.6"></a>
<span class="sourceLineNo">007</span><a name="line.7"></a>
<span class="sourceLineNo">008</span>package org.jsimpledb.parse.expr;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>import com.google.common.base.Function;<a name="line.10"></a>
<span class="sourceLineNo">011</span>import com.google.common.collect.Iterables;<a name="line.11"></a>
<span class="sourceLineNo">012</span>import com.google.common.collect.Lists;<a name="line.12"></a>
<span class="sourceLineNo">013</span>import com.google.common.collect.Sets;<a name="line.13"></a>
<span class="sourceLineNo">014</span><a name="line.14"></a>
<span class="sourceLineNo">015</span>import java.math.BigDecimal;<a name="line.15"></a>
<span class="sourceLineNo">016</span>import java.math.BigInteger;<a name="line.16"></a>
<span class="sourceLineNo">017</span>import java.util.ArrayList;<a name="line.17"></a>
<span class="sourceLineNo">018</span>import java.util.Arrays;<a name="line.18"></a>
<span class="sourceLineNo">019</span>import java.util.NavigableSet;<a name="line.19"></a>
<span class="sourceLineNo">020</span>import java.util.Set;<a name="line.20"></a>
<span class="sourceLineNo">021</span><a name="line.21"></a>
<span class="sourceLineNo">022</span>import org.jsimpledb.parse.ParseSession;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import org.jsimpledb.parse.util.InstancePredicate;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import org.jsimpledb.util.NavigableSets;<a name="line.24"></a>
<span class="sourceLineNo">025</span><a name="line.25"></a>
<span class="sourceLineNo">026</span>/**<a name="line.26"></a>
<span class="sourceLineNo">027</span> * {@link Value} implementation superclass with implementations for all methods other than {@link #get get()}.<a name="line.27"></a>
<span class="sourceLineNo">028</span> */<a name="line.28"></a>
<span class="sourceLineNo">029</span>public abstract class AbstractValue implements Value {<a name="line.29"></a>
<span class="sourceLineNo">030</span><a name="line.30"></a>
<span class="sourceLineNo">031</span>    protected AbstractValue() {<a name="line.31"></a>
<span class="sourceLineNo">032</span>    }<a name="line.32"></a>
<span class="sourceLineNo">033</span><a name="line.33"></a>
<span class="sourceLineNo">034</span>    @Override<a name="line.34"></a>
<span class="sourceLineNo">035</span>    public Object checkNotNull(ParseSession session, String operation) {<a name="line.35"></a>
<span class="sourceLineNo">036</span>        final Object value = this.get(session);<a name="line.36"></a>
<span class="sourceLineNo">037</span>        if (value == null)<a name="line.37"></a>
<span class="sourceLineNo">038</span>            throw new EvalException("invalid " + operation + " operation on null value");<a name="line.38"></a>
<span class="sourceLineNo">039</span>        return value;<a name="line.39"></a>
<span class="sourceLineNo">040</span>    }<a name="line.40"></a>
<span class="sourceLineNo">041</span><a name="line.41"></a>
<span class="sourceLineNo">042</span>    @Override<a name="line.42"></a>
<span class="sourceLineNo">043</span>    public boolean checkBoolean(ParseSession session, String operation) {<a name="line.43"></a>
<span class="sourceLineNo">044</span>        return this.checkType(session, operation, Boolean.class);<a name="line.44"></a>
<span class="sourceLineNo">045</span>    }<a name="line.45"></a>
<span class="sourceLineNo">046</span><a name="line.46"></a>
<span class="sourceLineNo">047</span>    @Override<a name="line.47"></a>
<span class="sourceLineNo">048</span>    public Number checkNumeric(ParseSession session, String operation) {<a name="line.48"></a>
<span class="sourceLineNo">049</span>        return AbstractValue.checkNumeric(session, this.get(session), operation);<a name="line.49"></a>
<span class="sourceLineNo">050</span>    }<a name="line.50"></a>
<span class="sourceLineNo">051</span><a name="line.51"></a>
<span class="sourceLineNo">052</span>    @Override<a name="line.52"></a>
<span class="sourceLineNo">053</span>    public int checkIntegral(ParseSession session, String operation) {<a name="line.53"></a>
<span class="sourceLineNo">054</span>        final Object value = this.checkNotNull(session, operation);<a name="line.54"></a>
<span class="sourceLineNo">055</span>        if (value instanceof Character)<a name="line.55"></a>
<span class="sourceLineNo">056</span>            return (int)(Character)value;<a name="line.56"></a>
<span class="sourceLineNo">057</span>        if (!(value instanceof Byte) &amp;&amp; !(value instanceof Short) &amp;&amp; !(value instanceof Integer))<a name="line.57"></a>
<span class="sourceLineNo">058</span>            throw new EvalException("invalid " + operation + " operation on " + AbstractValue.describeType(value, "non-integral"));<a name="line.58"></a>
<span class="sourceLineNo">059</span>        return ((Number)value).intValue();<a name="line.59"></a>
<span class="sourceLineNo">060</span>    }<a name="line.60"></a>
<span class="sourceLineNo">061</span><a name="line.61"></a>
<span class="sourceLineNo">062</span>    @Override<a name="line.62"></a>
<span class="sourceLineNo">063</span>    public &lt;T&gt; T checkType(ParseSession session, String operation, Class&lt;T&gt; type) {<a name="line.63"></a>
<span class="sourceLineNo">064</span>        if (type == null)<a name="line.64"></a>
<span class="sourceLineNo">065</span>            throw new IllegalArgumentException("null type");<a name="line.65"></a>
<span class="sourceLineNo">066</span>        final Object value = this.checkNotNull(session, operation);<a name="line.66"></a>
<span class="sourceLineNo">067</span>        if (!type.isInstance(value)) {<a name="line.67"></a>
<span class="sourceLineNo">068</span>            throw new EvalException("invalid " + operation + " operation on "<a name="line.68"></a>
<span class="sourceLineNo">069</span>              + AbstractValue.describeType(value, "non-" + type.getSimpleName()));<a name="line.69"></a>
<span class="sourceLineNo">070</span>        }<a name="line.70"></a>
<span class="sourceLineNo">071</span>        return type.cast(value);<a name="line.71"></a>
<span class="sourceLineNo">072</span>    }<a name="line.72"></a>
<span class="sourceLineNo">073</span><a name="line.73"></a>
<span class="sourceLineNo">074</span>    @Override<a name="line.74"></a>
<span class="sourceLineNo">075</span>    public Value xxcrement(ParseSession session, String operation, boolean increment) {<a name="line.75"></a>
<span class="sourceLineNo">076</span>        final int amount = increment ? 1 : -1;<a name="line.76"></a>
<span class="sourceLineNo">077</span>        final LValue thisLValue = this.asLValue(operation);<a name="line.77"></a>
<span class="sourceLineNo">078</span>        final Object value = this.get(session);<a name="line.78"></a>
<span class="sourceLineNo">079</span>        Object num = value instanceof Character ? value : AbstractValue.checkNumeric(session, value, operation);<a name="line.79"></a>
<span class="sourceLineNo">080</span>        if (num instanceof Byte)<a name="line.80"></a>
<span class="sourceLineNo">081</span>            num = (byte)((Byte)num + (byte)amount);<a name="line.81"></a>
<span class="sourceLineNo">082</span>        else if (num instanceof Character)<a name="line.82"></a>
<span class="sourceLineNo">083</span>            num = (char)((Character)num + (char)amount);<a name="line.83"></a>
<span class="sourceLineNo">084</span>        else if (num instanceof Short)<a name="line.84"></a>
<span class="sourceLineNo">085</span>            num = (short)((Short)num + (short)amount);<a name="line.85"></a>
<span class="sourceLineNo">086</span>        else if (num instanceof Integer)<a name="line.86"></a>
<span class="sourceLineNo">087</span>            num = (Integer)num + amount;<a name="line.87"></a>
<span class="sourceLineNo">088</span>        else if (num instanceof Float)<a name="line.88"></a>
<span class="sourceLineNo">089</span>            num = (Float)num + (float)amount;<a name="line.89"></a>
<span class="sourceLineNo">090</span>        else if (num instanceof Long)<a name="line.90"></a>
<span class="sourceLineNo">091</span>            num = (Long)num + (long)amount;<a name="line.91"></a>
<span class="sourceLineNo">092</span>        else if (num instanceof Double)<a name="line.92"></a>
<span class="sourceLineNo">093</span>            num = (Double)num + (double)amount;<a name="line.93"></a>
<span class="sourceLineNo">094</span>        else if (num instanceof BigInteger)<a name="line.94"></a>
<span class="sourceLineNo">095</span>            num = ((BigInteger)num).add(increment ? BigInteger.ONE : BigInteger.ONE.negate());<a name="line.95"></a>
<span class="sourceLineNo">096</span>        else if (num instanceof BigDecimal)<a name="line.96"></a>
<span class="sourceLineNo">097</span>            num = ((BigDecimal)num).add(increment ? BigDecimal.ONE : BigDecimal.ONE.negate());<a name="line.97"></a>
<span class="sourceLineNo">098</span>        else<a name="line.98"></a>
<span class="sourceLineNo">099</span>            throw new EvalException("invalid " + operation + " operation on " + AbstractValue.describeType(num));<a name="line.99"></a>
<span class="sourceLineNo">100</span>        final Value result = new ConstValue(num);<a name="line.100"></a>
<span class="sourceLineNo">101</span>        thisLValue.set(session, result);<a name="line.101"></a>
<span class="sourceLineNo">102</span>        return result;<a name="line.102"></a>
<span class="sourceLineNo">103</span>    }<a name="line.103"></a>
<span class="sourceLineNo">104</span><a name="line.104"></a>
<span class="sourceLineNo">105</span>    @Override<a name="line.105"></a>
<span class="sourceLineNo">106</span>    public Value negate(ParseSession session) {<a name="line.106"></a>
<span class="sourceLineNo">107</span>        final Number num = AbstractValue.promoteNumeric(session, this.get(session), "negate");<a name="line.107"></a>
<span class="sourceLineNo">108</span>        if (num instanceof BigDecimal)<a name="line.108"></a>
<span class="sourceLineNo">109</span>            return new ConstValue(((BigDecimal)num).negate());<a name="line.109"></a>
<span class="sourceLineNo">110</span>        if (num instanceof Double)<a name="line.110"></a>
<span class="sourceLineNo">111</span>            return new ConstValue(-(Double)num);<a name="line.111"></a>
<span class="sourceLineNo">112</span>        if (num instanceof Float)<a name="line.112"></a>
<span class="sourceLineNo">113</span>            return new ConstValue(-(Float)num);<a name="line.113"></a>
<span class="sourceLineNo">114</span>        if (num instanceof BigInteger)<a name="line.114"></a>
<span class="sourceLineNo">115</span>            return new ConstValue(((BigInteger)num).negate());<a name="line.115"></a>
<span class="sourceLineNo">116</span>        if (num instanceof Long)<a name="line.116"></a>
<span class="sourceLineNo">117</span>            return new ConstValue(-(Long)num);<a name="line.117"></a>
<span class="sourceLineNo">118</span>        if (num instanceof Integer)<a name="line.118"></a>
<span class="sourceLineNo">119</span>            return new ConstValue(-(Integer)num);<a name="line.119"></a>
<span class="sourceLineNo">120</span>        throw new EvalException("invalid negate operation on " + AbstractValue.describeType(num));<a name="line.120"></a>
<span class="sourceLineNo">121</span>    }<a name="line.121"></a>
<span class="sourceLineNo">122</span><a name="line.122"></a>
<span class="sourceLineNo">123</span>    @Override<a name="line.123"></a>
<span class="sourceLineNo">124</span>    public Value invert(ParseSession session) {<a name="line.124"></a>
<span class="sourceLineNo">125</span>        final Number num = AbstractValue.promoteNumeric(session, this.get(session), "invert");<a name="line.125"></a>
<span class="sourceLineNo">126</span>        if (num instanceof Integer)<a name="line.126"></a>
<span class="sourceLineNo">127</span>            return new ConstValue(~(Integer)num);<a name="line.127"></a>
<span class="sourceLineNo">128</span>        if (num instanceof Long)<a name="line.128"></a>
<span class="sourceLineNo">129</span>            return new ConstValue(~(Long)num);<a name="line.129"></a>
<span class="sourceLineNo">130</span>        throw new EvalException("invalid invert operation on " + AbstractValue.describeType(num));<a name="line.130"></a>
<span class="sourceLineNo">131</span>    }<a name="line.131"></a>
<span class="sourceLineNo">132</span><a name="line.132"></a>
<span class="sourceLineNo">133</span>    @Override<a name="line.133"></a>
<span class="sourceLineNo">134</span>    public Value multiply(ParseSession session, Value that) {<a name="line.134"></a>
<span class="sourceLineNo">135</span>        final Object thisValue = this.checkNotNull(session, "multiply");<a name="line.135"></a>
<span class="sourceLineNo">136</span>        final Object thatValue = that.checkNotNull(session, "multiply");<a name="line.136"></a>
<span class="sourceLineNo">137</span>        final Number lnum = AbstractValue.promoteNumeric(session, thisValue, "multiply", thatValue);<a name="line.137"></a>
<span class="sourceLineNo">138</span>        final Number rnum = AbstractValue.promoteNumeric(session, thatValue, "multiply", thisValue);<a name="line.138"></a>
<span class="sourceLineNo">139</span>        if (lnum instanceof BigDecimal)<a name="line.139"></a>
<span class="sourceLineNo">140</span>            return new ConstValue(((BigDecimal)lnum).multiply((BigDecimal)rnum));<a name="line.140"></a>
<span class="sourceLineNo">141</span>        if (lnum instanceof Double)<a name="line.141"></a>
<span class="sourceLineNo">142</span>            return new ConstValue((Double)lnum * (Double)rnum);<a name="line.142"></a>
<span class="sourceLineNo">143</span>        if (lnum instanceof Float)<a name="line.143"></a>
<span class="sourceLineNo">144</span>            return new ConstValue((Float)lnum * (Float)rnum);<a name="line.144"></a>
<span class="sourceLineNo">145</span>        if (lnum instanceof BigInteger)<a name="line.145"></a>
<span class="sourceLineNo">146</span>            return new ConstValue(((BigInteger)lnum).multiply((BigInteger)rnum));<a name="line.146"></a>
<span class="sourceLineNo">147</span>        if (lnum instanceof Long)<a name="line.147"></a>
<span class="sourceLineNo">148</span>            return new ConstValue((Long)lnum * (Long)rnum);<a name="line.148"></a>
<span class="sourceLineNo">149</span>        if (lnum instanceof Integer)<a name="line.149"></a>
<span class="sourceLineNo">150</span>            return new ConstValue((Integer)lnum * (Integer)rnum);<a name="line.150"></a>
<span class="sourceLineNo">151</span>        throw new EvalException("invalid multiply operation on values of type "<a name="line.151"></a>
<span class="sourceLineNo">152</span>          + lnum.getClass().getName() + " and " + rnum.getClass().getName());<a name="line.152"></a>
<span class="sourceLineNo">153</span>    }<a name="line.153"></a>
<span class="sourceLineNo">154</span><a name="line.154"></a>
<span class="sourceLineNo">155</span>    @Override<a name="line.155"></a>
<span class="sourceLineNo">156</span>    public Value divide(ParseSession session, Value that) {<a name="line.156"></a>
<span class="sourceLineNo">157</span>        final Object thisValue = this.checkNotNull(session, "divide");<a name="line.157"></a>
<span class="sourceLineNo">158</span>        final Object thatValue = that.checkNotNull(session, "divide");<a name="line.158"></a>
<span class="sourceLineNo">159</span>        final Number lnum = AbstractValue.promoteNumeric(session, thisValue, "divide", thatValue);<a name="line.159"></a>
<span class="sourceLineNo">160</span>        final Number rnum = AbstractValue.promoteNumeric(session, thatValue, "divide", thisValue);<a name="line.160"></a>
<span class="sourceLineNo">161</span>        if (lnum instanceof BigDecimal)<a name="line.161"></a>
<span class="sourceLineNo">162</span>            return new ConstValue(((BigDecimal)lnum).divide((BigDecimal)rnum));<a name="line.162"></a>
<span class="sourceLineNo">163</span>        if (lnum instanceof Double)<a name="line.163"></a>
<span class="sourceLineNo">164</span>            return new ConstValue((Double)lnum / (Double)rnum);<a name="line.164"></a>
<span class="sourceLineNo">165</span>        if (lnum instanceof Float)<a name="line.165"></a>
<span class="sourceLineNo">166</span>            return new ConstValue((Float)lnum / (Float)rnum);<a name="line.166"></a>
<span class="sourceLineNo">167</span>        if (lnum instanceof BigInteger)<a name="line.167"></a>
<span class="sourceLineNo">168</span>            return new ConstValue(((BigInteger)lnum).divide((BigInteger)rnum));<a name="line.168"></a>
<span class="sourceLineNo">169</span>        if (lnum instanceof Long)<a name="line.169"></a>
<span class="sourceLineNo">170</span>            return new ConstValue((Long)lnum / (Long)rnum);<a name="line.170"></a>
<span class="sourceLineNo">171</span>        if (lnum instanceof Integer)<a name="line.171"></a>
<span class="sourceLineNo">172</span>            return new ConstValue((Integer)lnum / (Integer)rnum);<a name="line.172"></a>
<span class="sourceLineNo">173</span>        throw new EvalException("invalid divide operation on values of type "<a name="line.173"></a>
<span class="sourceLineNo">174</span>          + lnum.getClass().getName() + " and " + rnum.getClass().getName());<a name="line.174"></a>
<span class="sourceLineNo">175</span>    }<a name="line.175"></a>
<span class="sourceLineNo">176</span><a name="line.176"></a>
<span class="sourceLineNo">177</span>    @Override<a name="line.177"></a>
<span class="sourceLineNo">178</span>    public Value mod(ParseSession session, Value that) {<a name="line.178"></a>
<span class="sourceLineNo">179</span>        final Object thisValue = this.checkNotNull(session, "modulo");<a name="line.179"></a>
<span class="sourceLineNo">180</span>        final Object thatValue = that.checkNotNull(session, "modulo");<a name="line.180"></a>
<span class="sourceLineNo">181</span>        final Number lnum = AbstractValue.promoteNumeric(session, thisValue, "modulo", thatValue);<a name="line.181"></a>
<span class="sourceLineNo">182</span>        final Number rnum = AbstractValue.promoteNumeric(session, thatValue, "modulo", thisValue);<a name="line.182"></a>
<span class="sourceLineNo">183</span>        if (lnum instanceof Double)<a name="line.183"></a>
<span class="sourceLineNo">184</span>            return new ConstValue((Double)lnum % (Double)rnum);<a name="line.184"></a>
<span class="sourceLineNo">185</span>        if (lnum instanceof Float)<a name="line.185"></a>
<span class="sourceLineNo">186</span>            return new ConstValue((Float)lnum % (Float)rnum);<a name="line.186"></a>
<span class="sourceLineNo">187</span>        if (lnum instanceof BigInteger)<a name="line.187"></a>
<span class="sourceLineNo">188</span>            return new ConstValue(((BigInteger)lnum).mod((BigInteger)rnum));<a name="line.188"></a>
<span class="sourceLineNo">189</span>        if (lnum instanceof Long)<a name="line.189"></a>
<span class="sourceLineNo">190</span>            return new ConstValue((Long)lnum % (Long)rnum);<a name="line.190"></a>
<span class="sourceLineNo">191</span>        if (lnum instanceof Integer)<a name="line.191"></a>
<span class="sourceLineNo">192</span>            return new ConstValue((Integer)lnum % (Integer)rnum);<a name="line.192"></a>
<span class="sourceLineNo">193</span>        throw new EvalException("invalid modulo operation on values of type "<a name="line.193"></a>
<span class="sourceLineNo">194</span>          + lnum.getClass().getName() + " and " + rnum.getClass().getName());<a name="line.194"></a>
<span class="sourceLineNo">195</span>    }<a name="line.195"></a>
<span class="sourceLineNo">196</span><a name="line.196"></a>
<span class="sourceLineNo">197</span>    @Override<a name="line.197"></a>
<span class="sourceLineNo">198</span>    public Value add(ParseSession session, Value that) {<a name="line.198"></a>
<span class="sourceLineNo">199</span><a name="line.199"></a>
<span class="sourceLineNo">200</span>        // Handle String concatenation<a name="line.200"></a>
<span class="sourceLineNo">201</span>        final Object thisValue = this.get(session);<a name="line.201"></a>
<span class="sourceLineNo">202</span>        final Object thatValue = that.get(session);<a name="line.202"></a>
<span class="sourceLineNo">203</span>        if (thisValue == null || thatValue == null || thisValue instanceof String || thatValue instanceof String)<a name="line.203"></a>
<span class="sourceLineNo">204</span>            return new ConstValue(String.valueOf(thisValue) + String.valueOf(thatValue));<a name="line.204"></a>
<span class="sourceLineNo">205</span><a name="line.205"></a>
<span class="sourceLineNo">206</span>        // Handle numeric<a name="line.206"></a>
<span class="sourceLineNo">207</span>        final Number lnum = AbstractValue.promoteNumeric(session, thisValue, "add", thatValue);<a name="line.207"></a>
<span class="sourceLineNo">208</span>        final Number rnum = AbstractValue.promoteNumeric(session, thatValue, "add", thisValue);<a name="line.208"></a>
<span class="sourceLineNo">209</span>        if (lnum instanceof BigDecimal)<a name="line.209"></a>
<span class="sourceLineNo">210</span>            return new ConstValue(((BigDecimal)lnum).add((BigDecimal)rnum));<a name="line.210"></a>
<span class="sourceLineNo">211</span>        if (lnum instanceof Double)<a name="line.211"></a>
<span class="sourceLineNo">212</span>            return new ConstValue((Double)lnum + (Double)rnum);<a name="line.212"></a>
<span class="sourceLineNo">213</span>        if (lnum instanceof Float)<a name="line.213"></a>
<span class="sourceLineNo">214</span>            return new ConstValue((Float)lnum + (Float)rnum);<a name="line.214"></a>
<span class="sourceLineNo">215</span>        if (lnum instanceof BigInteger)<a name="line.215"></a>
<span class="sourceLineNo">216</span>            return new ConstValue(((BigInteger)lnum).add((BigInteger)rnum));<a name="line.216"></a>
<span class="sourceLineNo">217</span>        if (lnum instanceof Long)<a name="line.217"></a>
<span class="sourceLineNo">218</span>            return new ConstValue((Long)lnum + (Long)rnum);<a name="line.218"></a>
<span class="sourceLineNo">219</span>        if (lnum instanceof Integer)<a name="line.219"></a>
<span class="sourceLineNo">220</span>            return new ConstValue((Integer)lnum + (Integer)rnum);<a name="line.220"></a>
<span class="sourceLineNo">221</span>        throw new EvalException("invalid add operation on values of type "<a name="line.221"></a>
<span class="sourceLineNo">222</span>          + lnum.getClass().getName() + " and " + rnum.getClass().getName());<a name="line.222"></a>
<span class="sourceLineNo">223</span>    }<a name="line.223"></a>
<span class="sourceLineNo">224</span><a name="line.224"></a>
<span class="sourceLineNo">225</span>    @Override<a name="line.225"></a>
<span class="sourceLineNo">226</span>    @SuppressWarnings("unchecked")<a name="line.226"></a>
<span class="sourceLineNo">227</span>    public Value subtract(ParseSession session, Value that) {<a name="line.227"></a>
<span class="sourceLineNo">228</span><a name="line.228"></a>
<span class="sourceLineNo">229</span>        // Handle NavigableSet with equal comparators XXX might not have compatible elements<a name="line.229"></a>
<span class="sourceLineNo">230</span>        final Object thisValue = this.checkNotNull(session, "subtract");<a name="line.230"></a>
<span class="sourceLineNo">231</span>        final Object thatValue = that.checkNotNull(session, "subtract");<a name="line.231"></a>
<span class="sourceLineNo">232</span>        if (thisValue instanceof NavigableSet<a name="line.232"></a>
<span class="sourceLineNo">233</span>          &amp;&amp; thatValue instanceof NavigableSet<a name="line.233"></a>
<span class="sourceLineNo">234</span>          &amp;&amp; (((NavigableSet&lt;?&gt;)thisValue).comparator() != null ?<a name="line.234"></a>
<span class="sourceLineNo">235</span>           ((NavigableSet&lt;?&gt;)thisValue).comparator().equals(((NavigableSet&lt;?&gt;)thatValue).comparator()) :<a name="line.235"></a>
<span class="sourceLineNo">236</span>           ((NavigableSet&lt;?&gt;)thatValue).comparator() == null))<a name="line.236"></a>
<span class="sourceLineNo">237</span>            return new ConstValue(NavigableSets.difference((NavigableSet&lt;Object&gt;)thisValue, (NavigableSet&lt;Object&gt;)thatValue));<a name="line.237"></a>
<span class="sourceLineNo">238</span><a name="line.238"></a>
<span class="sourceLineNo">239</span>        // Handle Set<a name="line.239"></a>
<span class="sourceLineNo">240</span>        if (thisValue instanceof Set &amp;&amp; thatValue instanceof Set)<a name="line.240"></a>
<span class="sourceLineNo">241</span>            return new ConstValue(Sets.difference((Set&lt;Object&gt;)thisValue, (Set&lt;Object&gt;)thatValue));<a name="line.241"></a>
<span class="sourceLineNo">242</span><a name="line.242"></a>
<span class="sourceLineNo">243</span>        // Handle numeric<a name="line.243"></a>
<span class="sourceLineNo">244</span>        final Number lnum = AbstractValue.promoteNumeric(session, thisValue, "subtract", thatValue);<a name="line.244"></a>
<span class="sourceLineNo">245</span>        final Number rnum = AbstractValue.promoteNumeric(session, thatValue, "subtract", thisValue);<a name="line.245"></a>
<span class="sourceLineNo">246</span>        if (lnum instanceof BigDecimal)<a name="line.246"></a>
<span class="sourceLineNo">247</span>            return new ConstValue(((BigDecimal)lnum).subtract((BigDecimal)rnum));<a name="line.247"></a>
<span class="sourceLineNo">248</span>        if (lnum instanceof Double)<a name="line.248"></a>
<span class="sourceLineNo">249</span>            return new ConstValue((Double)lnum - (Double)rnum);<a name="line.249"></a>
<span class="sourceLineNo">250</span>        if (lnum instanceof Float)<a name="line.250"></a>
<span class="sourceLineNo">251</span>            return new ConstValue((Float)lnum - (Float)rnum);<a name="line.251"></a>
<span class="sourceLineNo">252</span>        if (lnum instanceof BigInteger)<a name="line.252"></a>
<span class="sourceLineNo">253</span>            return new ConstValue(((BigInteger)lnum).subtract((BigInteger)rnum));<a name="line.253"></a>
<span class="sourceLineNo">254</span>        if (lnum instanceof Long)<a name="line.254"></a>
<span class="sourceLineNo">255</span>            return new ConstValue((Long)lnum - (Long)rnum);<a name="line.255"></a>
<span class="sourceLineNo">256</span>        if (lnum instanceof Integer)<a name="line.256"></a>
<span class="sourceLineNo">257</span>            return new ConstValue((Integer)lnum - (Integer)rnum);<a name="line.257"></a>
<span class="sourceLineNo">258</span>        throw new EvalException("invalid subtract operation on values of type "<a name="line.258"></a>
<span class="sourceLineNo">259</span>          + lnum.getClass().getName() + " and " + rnum.getClass().getName());<a name="line.259"></a>
<span class="sourceLineNo">260</span>    }<a name="line.260"></a>
<span class="sourceLineNo">261</span><a name="line.261"></a>
<span class="sourceLineNo">262</span>    @Override<a name="line.262"></a>
<span class="sourceLineNo">263</span>    public Value lshift(ParseSession session, Value arg) {<a name="line.263"></a>
<span class="sourceLineNo">264</span>        final Object thisValue = this.checkNotNull(session, "left shift");<a name="line.264"></a>
<span class="sourceLineNo">265</span>        final Object thatValue = arg.checkNotNull(session, "left shift");<a name="line.265"></a>
<span class="sourceLineNo">266</span>        final Number target = AbstractValue.promoteNumeric(session, thisValue, "left shift");<a name="line.266"></a>
<span class="sourceLineNo">267</span>        final Number shift = AbstractValue.promoteNumeric(session, thatValue, "left shift");<a name="line.267"></a>
<span class="sourceLineNo">268</span>        if (!(target instanceof Integer) &amp;&amp; !(target instanceof Long))<a name="line.268"></a>
<span class="sourceLineNo">269</span>            throw new EvalException("invalid left shift target " + AbstractValue.describeType(target));<a name="line.269"></a>
<span class="sourceLineNo">270</span>        if (!(shift instanceof Integer) &amp;&amp; !(shift instanceof Long))<a name="line.270"></a>
<span class="sourceLineNo">271</span>            throw new EvalException("invalid left shift " + AbstractValue.describeType(shift));<a name="line.271"></a>
<span class="sourceLineNo">272</span>        if (target instanceof Long)<a name="line.272"></a>
<span class="sourceLineNo">273</span>            return new ConstValue((Long)target &lt;&lt; (shift.intValue() &amp; 0x1f));<a name="line.273"></a>
<span class="sourceLineNo">274</span>        if (target instanceof Integer)<a name="line.274"></a>
<span class="sourceLineNo">275</span>            return new ConstValue((Integer)target &lt;&lt; (shift.intValue() &amp; 0x3f));<a name="line.275"></a>
<span class="sourceLineNo">276</span>        throw new EvalException("invalid left shift operation on "<a name="line.276"></a>
<span class="sourceLineNo">277</span>          + AbstractValue.describeType(target) + " and " + AbstractValue.describeType(shift));<a name="line.277"></a>
<span class="sourceLineNo">278</span>    }<a name="line.278"></a>
<span class="sourceLineNo">279</span><a name="line.279"></a>
<span class="sourceLineNo">280</span>    @Override<a name="line.280"></a>
<span class="sourceLineNo">281</span>    public Value rshift(ParseSession session, Value arg) {<a name="line.281"></a>
<span class="sourceLineNo">282</span>        final Object thisValue = this.checkNotNull(session, "right shift");<a name="line.282"></a>
<span class="sourceLineNo">283</span>        final Object thatValue = arg.checkNotNull(session, "right shift");<a name="line.283"></a>
<span class="sourceLineNo">284</span>        final Number target = AbstractValue.promoteNumeric(session, thisValue, "right shift");<a name="line.284"></a>
<span class="sourceLineNo">285</span>        final Number shift = AbstractValue.promoteNumeric(session, thatValue, "right shift");<a name="line.285"></a>
<span class="sourceLineNo">286</span>        if (!(target instanceof Integer) &amp;&amp; !(target instanceof Long))<a name="line.286"></a>
<span class="sourceLineNo">287</span>            throw new EvalException("invalid right shift target " + AbstractValue.describeType(target));<a name="line.287"></a>
<span class="sourceLineNo">288</span>        if (!(shift instanceof Integer) &amp;&amp; !(shift instanceof Long))<a name="line.288"></a>
<span class="sourceLineNo">289</span>            throw new EvalException("invalid right shift " + AbstractValue.describeType(shift));<a name="line.289"></a>
<span class="sourceLineNo">290</span>        if (target instanceof Long)<a name="line.290"></a>
<span class="sourceLineNo">291</span>            return new ConstValue((Long)target &gt;&gt; (shift.intValue() &amp; 0x1f));<a name="line.291"></a>
<span class="sourceLineNo">292</span>        if (target instanceof Integer)<a name="line.292"></a>
<span class="sourceLineNo">293</span>            return new ConstValue((Integer)target &gt;&gt; (shift.intValue() &amp; 0x3f));<a name="line.293"></a>
<span class="sourceLineNo">294</span>        throw new EvalException("invalid right shift operation on "<a name="line.294"></a>
<span class="sourceLineNo">295</span>          + AbstractValue.describeType(target) + " and " + AbstractValue.describeType(shift));<a name="line.295"></a>
<span class="sourceLineNo">296</span>    }<a name="line.296"></a>
<span class="sourceLineNo">297</span><a name="line.297"></a>
<span class="sourceLineNo">298</span>    @Override<a name="line.298"></a>
<span class="sourceLineNo">299</span>    public Value urshift(ParseSession session, Value arg) {<a name="line.299"></a>
<span class="sourceLineNo">300</span>        final Object thisValue = this.checkNotNull(session, "unsigned right shift");<a name="line.300"></a>
<span class="sourceLineNo">301</span>        final Object thatValue = arg.checkNotNull(session, "unsigned right shift");<a name="line.301"></a>
<span class="sourceLineNo">302</span>        final Number target = AbstractValue.promoteNumeric(session, thisValue, "unsigned right shift");<a name="line.302"></a>
<span class="sourceLineNo">303</span>        final Number shift = AbstractValue.promoteNumeric(session, thatValue, "unsigned right shift");<a name="line.303"></a>
<span class="sourceLineNo">304</span>        if (!(target instanceof Integer) &amp;&amp; !(target instanceof Long))<a name="line.304"></a>
<span class="sourceLineNo">305</span>            throw new EvalException("invalid unsigned right shift target " + AbstractValue.describeType(target));<a name="line.305"></a>
<span class="sourceLineNo">306</span>        if (!(shift instanceof Integer) &amp;&amp; !(shift instanceof Long))<a name="line.306"></a>
<span class="sourceLineNo">307</span>            throw new EvalException("invalid unsigned right shift " + AbstractValue.describeType(shift));<a name="line.307"></a>
<span class="sourceLineNo">308</span>        if (target instanceof Long)<a name="line.308"></a>
<span class="sourceLineNo">309</span>            return new ConstValue((Long)target &gt;&gt;&gt; (shift.intValue() &amp; 0x1f));<a name="line.309"></a>
<span class="sourceLineNo">310</span>        if (target instanceof Integer)<a name="line.310"></a>
<span class="sourceLineNo">311</span>            return new ConstValue((Integer)target &gt;&gt;&gt; (shift.intValue() &amp; 0x3f));<a name="line.311"></a>
<span class="sourceLineNo">312</span>        throw new EvalException("invalid unsigned right shift operation on "<a name="line.312"></a>
<span class="sourceLineNo">313</span>          + AbstractValue.describeType(target) + " and " + AbstractValue.describeType(shift));<a name="line.313"></a>
<span class="sourceLineNo">314</span>    }<a name="line.314"></a>
<span class="sourceLineNo">315</span><a name="line.315"></a>
<span class="sourceLineNo">316</span>    @Override<a name="line.316"></a>
<span class="sourceLineNo">317</span>    @SuppressWarnings("unchecked")<a name="line.317"></a>
<span class="sourceLineNo">318</span>    public Value and(ParseSession session, Value that) {<a name="line.318"></a>
<span class="sourceLineNo">319</span><a name="line.319"></a>
<span class="sourceLineNo">320</span>        // Handle boolean<a name="line.320"></a>
<span class="sourceLineNo">321</span>        final Object thisValue = this.checkNotNull(session, "`and'");<a name="line.321"></a>
<span class="sourceLineNo">322</span>        final Object thatValue = that.checkNotNull(session, "`and'");<a name="line.322"></a>
<span class="sourceLineNo">323</span>        if (thisValue instanceof Boolean &amp;&amp; thatValue instanceof Boolean)<a name="line.323"></a>
<span class="sourceLineNo">324</span>            return new ConstValue((Boolean)thisValue &amp; (Boolean)thatValue);<a name="line.324"></a>
<span class="sourceLineNo">325</span><a name="line.325"></a>
<span class="sourceLineNo">326</span>        // Handle NavigableSet with equal comparators XXX might not have compatible elements<a name="line.326"></a>
<span class="sourceLineNo">327</span>        if (thisValue instanceof NavigableSet<a name="line.327"></a>
<span class="sourceLineNo">328</span>          &amp;&amp; thatValue instanceof NavigableSet<a name="line.328"></a>
<span class="sourceLineNo">329</span>          &amp;&amp; (((NavigableSet&lt;?&gt;)thisValue).comparator() != null ?<a name="line.329"></a>
<span class="sourceLineNo">330</span>           ((NavigableSet&lt;?&gt;)thisValue).comparator().equals(((NavigableSet&lt;?&gt;)thatValue).comparator()) :<a name="line.330"></a>
<span class="sourceLineNo">331</span>           ((NavigableSet&lt;?&gt;)thatValue).comparator() == null))<a name="line.331"></a>
<span class="sourceLineNo">332</span>            return new ConstValue(NavigableSets.intersection((NavigableSet&lt;Object&gt;)thisValue, (NavigableSet&lt;Object&gt;)thatValue));<a name="line.332"></a>
<span class="sourceLineNo">333</span><a name="line.333"></a>
<span class="sourceLineNo">334</span>        // Handle Set<a name="line.334"></a>
<span class="sourceLineNo">335</span>        if (thisValue instanceof Set &amp;&amp; thatValue instanceof Set)<a name="line.335"></a>
<span class="sourceLineNo">336</span>            return new ConstValue(Sets.intersection((Set&lt;Object&gt;)thisValue, (Set&lt;Object&gt;)thatValue));<a name="line.336"></a>
<span class="sourceLineNo">337</span><a name="line.337"></a>
<span class="sourceLineNo">338</span>        // Handle numeric<a name="line.338"></a>
<span class="sourceLineNo">339</span>        final Number lnum = AbstractValue.promoteNumeric(session, thisValue, "`and'", thatValue);<a name="line.339"></a>
<span class="sourceLineNo">340</span>        final Number rnum = AbstractValue.promoteNumeric(session, thatValue, "`and'", thisValue);<a name="line.340"></a>
<span class="sourceLineNo">341</span>        if (!(lnum instanceof Integer) &amp;&amp; !(lnum instanceof Long) &amp;&amp; !(lnum instanceof BigInteger))<a name="line.341"></a>
<span class="sourceLineNo">342</span>            throw new EvalException("invalid `and' operation on " + AbstractValue.describeType(lnum));<a name="line.342"></a>
<span class="sourceLineNo">343</span>        if (lnum instanceof BigInteger)<a name="line.343"></a>
<span class="sourceLineNo">344</span>            return new ConstValue(((BigInteger)lnum).and((BigInteger)rnum));<a name="line.344"></a>
<span class="sourceLineNo">345</span>        if (lnum instanceof Long)<a name="line.345"></a>
<span class="sourceLineNo">346</span>            return new ConstValue(((Long)lnum).longValue() &amp; ((Long)rnum).longValue());<a name="line.346"></a>
<span class="sourceLineNo">347</span>        return new ConstValue(((Integer)lnum).intValue() &amp; ((Integer)rnum).intValue());<a name="line.347"></a>
<span class="sourceLineNo">348</span>    }<a name="line.348"></a>
<span class="sourceLineNo">349</span><a name="line.349"></a>
<span class="sourceLineNo">350</span>    @Override<a name="line.350"></a>
<span class="sourceLineNo">351</span>    @SuppressWarnings("unchecked")<a name="line.351"></a>
<span class="sourceLineNo">352</span>    public Value or(ParseSession session, Value that) {<a name="line.352"></a>
<span class="sourceLineNo">353</span><a name="line.353"></a>
<span class="sourceLineNo">354</span>        // Handle boolean<a name="line.354"></a>
<span class="sourceLineNo">355</span>        final Object thisValue = this.checkNotNull(session, "`or'");<a name="line.355"></a>
<span class="sourceLineNo">356</span>        final Object thatValue = that.checkNotNull(session, "`or'");<a name="line.356"></a>
<span class="sourceLineNo">357</span>        if (thisValue instanceof Boolean &amp;&amp; thatValue instanceof Boolean)<a name="line.357"></a>
<span class="sourceLineNo">358</span>            return new ConstValue((Boolean)thisValue | (Boolean)thatValue);<a name="line.358"></a>
<span class="sourceLineNo">359</span><a name="line.359"></a>
<span class="sourceLineNo">360</span>        // Handle NavigableSet with equal comparators XXX might not have compatible elements<a name="line.360"></a>
<span class="sourceLineNo">361</span>        if (thisValue instanceof NavigableSet<a name="line.361"></a>
<span class="sourceLineNo">362</span>          &amp;&amp; thatValue instanceof NavigableSet<a name="line.362"></a>
<span class="sourceLineNo">363</span>          &amp;&amp; (((NavigableSet&lt;?&gt;)thisValue).comparator() != null ?<a name="line.363"></a>
<span class="sourceLineNo">364</span>           ((NavigableSet&lt;?&gt;)thisValue).comparator().equals(((NavigableSet&lt;?&gt;)thatValue).comparator()) :<a name="line.364"></a>
<span class="sourceLineNo">365</span>           ((NavigableSet&lt;?&gt;)thatValue).comparator() == null))<a name="line.365"></a>
<span class="sourceLineNo">366</span>            return new ConstValue(NavigableSets.union((NavigableSet&lt;Object&gt;)thisValue, (NavigableSet&lt;Object&gt;)thatValue));<a name="line.366"></a>
<span class="sourceLineNo">367</span><a name="line.367"></a>
<span class="sourceLineNo">368</span>        // Handle Set<a name="line.368"></a>
<span class="sourceLineNo">369</span>        if (thisValue instanceof Set &amp;&amp; thatValue instanceof Set)<a name="line.369"></a>
<span class="sourceLineNo">370</span>            return new ConstValue(Sets.union((Set&lt;Object&gt;)thisValue, (Set&lt;Object&gt;)thatValue));<a name="line.370"></a>
<span class="sourceLineNo">371</span><a name="line.371"></a>
<span class="sourceLineNo">372</span>        // Handle numeric<a name="line.372"></a>
<span class="sourceLineNo">373</span>        final Number lnum = AbstractValue.promoteNumeric(session, thisValue, "`or'", thatValue);<a name="line.373"></a>
<span class="sourceLineNo">374</span>        final Number rnum = AbstractValue.promoteNumeric(session, thatValue, "`or'", thisValue);<a name="line.374"></a>
<span class="sourceLineNo">375</span>        if (!(lnum instanceof Integer) &amp;&amp; !(lnum instanceof Long) &amp;&amp; !(lnum instanceof BigInteger))<a name="line.375"></a>
<span class="sourceLineNo">376</span>            throw new EvalException("invalid `or' operation on " + AbstractValue.describeType(lnum));<a name="line.376"></a>
<span class="sourceLineNo">377</span>        if (lnum instanceof BigInteger)<a name="line.377"></a>
<span class="sourceLineNo">378</span>            return new ConstValue(((BigInteger)lnum).or((BigInteger)rnum));<a name="line.378"></a>
<span class="sourceLineNo">379</span>        if (lnum instanceof Long)<a name="line.379"></a>
<span class="sourceLineNo">380</span>            return new ConstValue(((Long)lnum).longValue() | ((Long)rnum).longValue());<a name="line.380"></a>
<span class="sourceLineNo">381</span>        return new ConstValue(((Integer)lnum).intValue() | ((Integer)rnum).intValue());<a name="line.381"></a>
<span class="sourceLineNo">382</span>    }<a name="line.382"></a>
<span class="sourceLineNo">383</span><a name="line.383"></a>
<span class="sourceLineNo">384</span>    @Override<a name="line.384"></a>
<span class="sourceLineNo">385</span>    @SuppressWarnings("unchecked")<a name="line.385"></a>
<span class="sourceLineNo">386</span>    public Value xor(ParseSession session, Value that) {<a name="line.386"></a>
<span class="sourceLineNo">387</span><a name="line.387"></a>
<span class="sourceLineNo">388</span>        // Handle boolean<a name="line.388"></a>
<span class="sourceLineNo">389</span>        final Object thisValue = this.checkNotNull(session, "exclusive `or'");<a name="line.389"></a>
<span class="sourceLineNo">390</span>        final Object thatValue = that.checkNotNull(session, "exclusive `or'");<a name="line.390"></a>
<span class="sourceLineNo">391</span>        if (thisValue instanceof Boolean &amp;&amp; thatValue instanceof Boolean)<a name="line.391"></a>
<span class="sourceLineNo">392</span>            return new ConstValue((Boolean)thisValue ^ (Boolean)thatValue);<a name="line.392"></a>
<span class="sourceLineNo">393</span><a name="line.393"></a>
<span class="sourceLineNo">394</span>        // Handle NavigableSet with equal comparators XXX might not have compatible elements<a name="line.394"></a>
<span class="sourceLineNo">395</span>        if (thisValue instanceof NavigableSet<a name="line.395"></a>
<span class="sourceLineNo">396</span>          &amp;&amp; thatValue instanceof NavigableSet<a name="line.396"></a>
<span class="sourceLineNo">397</span>          &amp;&amp; (((NavigableSet&lt;?&gt;)thisValue).comparator() != null ?<a name="line.397"></a>
<span class="sourceLineNo">398</span>           ((NavigableSet&lt;?&gt;)thisValue).comparator().equals(((NavigableSet&lt;?&gt;)thatValue).comparator()) :<a name="line.398"></a>
<span class="sourceLineNo">399</span>           ((NavigableSet&lt;?&gt;)thatValue).comparator() == null)) {<a name="line.399"></a>
<span class="sourceLineNo">400</span>            return new ConstValue(NavigableSets.symmetricDifference((NavigableSet&lt;Object&gt;)thisValue,<a name="line.400"></a>
<span class="sourceLineNo">401</span>              (NavigableSet&lt;Object&gt;)thatValue));<a name="line.401"></a>
<span class="sourceLineNo">402</span>        }<a name="line.402"></a>
<span class="sourceLineNo">403</span><a name="line.403"></a>
<span class="sourceLineNo">404</span>        // Handle Set<a name="line.404"></a>
<span class="sourceLineNo">405</span>        if (thisValue instanceof Set &amp;&amp; thatValue instanceof Set)<a name="line.405"></a>
<span class="sourceLineNo">406</span>            return new ConstValue(Sets.symmetricDifference((Set&lt;Object&gt;)thisValue, (Set&lt;Object&gt;)thatValue));<a name="line.406"></a>
<span class="sourceLineNo">407</span><a name="line.407"></a>
<span class="sourceLineNo">408</span>        // Handle numeric<a name="line.408"></a>
<span class="sourceLineNo">409</span>        final Number lnum = AbstractValue.promoteNumeric(session, thisValue, "exclusive `or'", thatValue);<a name="line.409"></a>
<span class="sourceLineNo">410</span>        final Number rnum = AbstractValue.promoteNumeric(session, thatValue, "exclusive `or'", thisValue);<a name="line.410"></a>
<span class="sourceLineNo">411</span>        if (!(lnum instanceof Integer) &amp;&amp; !(lnum instanceof Long) &amp;&amp; !(lnum instanceof BigInteger))<a name="line.411"></a>
<span class="sourceLineNo">412</span>            throw new EvalException("invalid exclusive `or' operation on " + AbstractValue.describeType(lnum));<a name="line.412"></a>
<span class="sourceLineNo">413</span>        if (lnum instanceof BigInteger)<a name="line.413"></a>
<span class="sourceLineNo">414</span>            return new ConstValue(((BigInteger)lnum).xor((BigInteger)rnum));<a name="line.414"></a>
<span class="sourceLineNo">415</span>        if (lnum instanceof Long)<a name="line.415"></a>
<span class="sourceLineNo">416</span>            return new ConstValue(((Long)lnum).longValue() ^ ((Long)rnum).longValue());<a name="line.416"></a>
<span class="sourceLineNo">417</span>        return new ConstValue(((Integer)lnum).intValue() ^ ((Integer)rnum).intValue());<a name="line.417"></a>
<span class="sourceLineNo">418</span>    }<a name="line.418"></a>
<span class="sourceLineNo">419</span><a name="line.419"></a>
<span class="sourceLineNo">420</span>    @Override<a name="line.420"></a>
<span class="sourceLineNo">421</span>    @SuppressWarnings("unchecked")<a name="line.421"></a>
<span class="sourceLineNo">422</span>    public Value compare(ParseSession session, Value that, int mask) {<a name="line.422"></a>
<span class="sourceLineNo">423</span><a name="line.423"></a>
<span class="sourceLineNo">424</span>        // Try numeric comparison<a name="line.424"></a>
<span class="sourceLineNo">425</span>        final Object thisValue = this.checkNotNull(session, "comparison");<a name="line.425"></a>
<span class="sourceLineNo">426</span>        final Object thatValue = that.checkNotNull(session, "comparison");<a name="line.426"></a>
<span class="sourceLineNo">427</span>        while (thisValue instanceof Number &amp;&amp; thatValue instanceof Number) {<a name="line.427"></a>
<span class="sourceLineNo">428</span>            final Number lnum = AbstractValue.promoteNumeric(session, thisValue, "comparison", thatValue);<a name="line.428"></a>
<span class="sourceLineNo">429</span>            final Number rnum = AbstractValue.promoteNumeric(session, thatValue, "comparison", thisValue);<a name="line.429"></a>
<span class="sourceLineNo">430</span>            int result;<a name="line.430"></a>
<span class="sourceLineNo">431</span>            if (lnum instanceof BigDecimal)<a name="line.431"></a>
<span class="sourceLineNo">432</span>                result = ((BigDecimal)lnum).compareTo((BigDecimal)rnum);<a name="line.432"></a>
<span class="sourceLineNo">433</span>            else if (lnum instanceof Double)<a name="line.433"></a>
<span class="sourceLineNo">434</span>                result = Double.compare((Double)lnum, (Double)rnum);<a name="line.434"></a>
<span class="sourceLineNo">435</span>            else if (lnum instanceof Float)<a name="line.435"></a>
<span class="sourceLineNo">436</span>                result = Float.compare((Float)lnum, (Float)rnum);<a name="line.436"></a>
<span class="sourceLineNo">437</span>            else if (lnum instanceof BigInteger)<a name="line.437"></a>
<span class="sourceLineNo">438</span>                result = ((BigInteger)lnum).compareTo((BigInteger)rnum);<a name="line.438"></a>
<span class="sourceLineNo">439</span>            else if (lnum instanceof Long)<a name="line.439"></a>
<span class="sourceLineNo">440</span>                result = Long.compare((Long)lnum, (Long)rnum);<a name="line.440"></a>
<span class="sourceLineNo">441</span>            else if (lnum instanceof Integer)<a name="line.441"></a>
<span class="sourceLineNo">442</span>                result = Integer.compare((Integer)lnum, (Integer)rnum);<a name="line.442"></a>
<span class="sourceLineNo">443</span>            else<a name="line.443"></a>
<span class="sourceLineNo">444</span>                break;<a name="line.444"></a>
<span class="sourceLineNo">445</span>            result = result &lt; 0 ? LT : result &gt; 0 ? GT : EQ;<a name="line.445"></a>
<span class="sourceLineNo">446</span>            return new ConstValue((result &amp; mask) != 0);<a name="line.446"></a>
<span class="sourceLineNo">447</span>        }<a name="line.447"></a>
<span class="sourceLineNo">448</span><a name="line.448"></a>
<span class="sourceLineNo">449</span>        // Try natural ordering using Comparable<a name="line.449"></a>
<span class="sourceLineNo">450</span>        while (thisValue instanceof Comparable &amp;&amp; thatValue instanceof Comparable) {<a name="line.450"></a>
<span class="sourceLineNo">451</span>            int result;<a name="line.451"></a>
<span class="sourceLineNo">452</span>            try {<a name="line.452"></a>
<span class="sourceLineNo">453</span>                result = ((Comparable&lt;Object&gt;)thisValue).compareTo(thatValue);<a name="line.453"></a>
<span class="sourceLineNo">454</span>            } catch (ClassCastException e) {<a name="line.454"></a>
<span class="sourceLineNo">455</span>                break;<a name="line.455"></a>
<span class="sourceLineNo">456</span>            }<a name="line.456"></a>
<span class="sourceLineNo">457</span>            result = result &lt; 0 ? LT : result &gt; 0 ? GT : EQ;<a name="line.457"></a>
<span class="sourceLineNo">458</span>            return new ConstValue((result &amp; mask) != 0);<a name="line.458"></a>
<span class="sourceLineNo">459</span>        }<a name="line.459"></a>
<span class="sourceLineNo">460</span><a name="line.460"></a>
<span class="sourceLineNo">461</span>        // We don't know how to order these<a name="line.461"></a>
<span class="sourceLineNo">462</span>        throw new EvalException("invalid comparison operation between "<a name="line.462"></a>
<span class="sourceLineNo">463</span>          + AbstractValue.describeType(thisValue) + " and " + AbstractValue.describeType(thatValue));<a name="line.463"></a>
<span class="sourceLineNo">464</span>    }<a name="line.464"></a>
<span class="sourceLineNo">465</span><a name="line.465"></a>
<span class="sourceLineNo">466</span>    @Override<a name="line.466"></a>
<span class="sourceLineNo">467</span>    public LValue asLValue(String operation) {<a name="line.467"></a>
<span class="sourceLineNo">468</span>        try {<a name="line.468"></a>
<span class="sourceLineNo">469</span>            return (LValue)this;<a name="line.469"></a>
<span class="sourceLineNo">470</span>        } catch (ClassCastException e) {<a name="line.470"></a>
<span class="sourceLineNo">471</span>            throw new EvalException("invalid " + operation + " operation on non-assignable value");<a name="line.471"></a>
<span class="sourceLineNo">472</span>        }<a name="line.472"></a>
<span class="sourceLineNo">473</span>    }<a name="line.473"></a>
<span class="sourceLineNo">474</span><a name="line.474"></a>
<span class="sourceLineNo">475</span>    /**<a name="line.475"></a>
<span class="sourceLineNo">476</span>     * Promote the given object to the widest numeric type among itself and the provided objects, with integer as a lower bound.<a name="line.476"></a>
<span class="sourceLineNo">477</span>     *<a name="line.477"></a>
<span class="sourceLineNo">478</span>     * @param session current session<a name="line.478"></a>
<span class="sourceLineNo">479</span>     * @param obj Java value<a name="line.479"></a>
<span class="sourceLineNo">480</span>     * @param operation description of operation for error messages<a name="line.480"></a>
<span class="sourceLineNo">481</span>     * @param args zero or more other Java values<a name="line.481"></a>
<span class="sourceLineNo">482</span>     * @throws IllegalArgumentException if any argument is not numeric<a name="line.482"></a>
<span class="sourceLineNo">483</span>     */<a name="line.483"></a>
<span class="sourceLineNo">484</span>    static Number promoteNumeric(final ParseSession session, final Object obj, final String operation, Object... args) {<a name="line.484"></a>
<span class="sourceLineNo">485</span><a name="line.485"></a>
<span class="sourceLineNo">486</span>        // Promote any byte, char, or short up to int<a name="line.486"></a>
<span class="sourceLineNo">487</span>        Number num = obj instanceof Character ? (int)(Character)obj : AbstractValue.checkNumeric(session, obj, operation);<a name="line.487"></a>
<span class="sourceLineNo">488</span>        if (num instanceof Byte || num instanceof Short)<a name="line.488"></a>
<span class="sourceLineNo">489</span>            num = num.intValue();<a name="line.489"></a>
<span class="sourceLineNo">490</span><a name="line.490"></a>
<span class="sourceLineNo">491</span>        // Promote to widest type of any argument<a name="line.491"></a>
<span class="sourceLineNo">492</span>        if (args.length &gt; 0) {<a name="line.492"></a>
<span class="sourceLineNo">493</span>            final ArrayList&lt;Number&gt; nums = new ArrayList&lt;Number&gt;(1 + args.length);<a name="line.493"></a>
<span class="sourceLineNo">494</span>            nums.add(num);<a name="line.494"></a>
<span class="sourceLineNo">495</span>            nums.addAll(Lists.transform(Arrays.asList(args), new Function&lt;Object, Number&gt;() {<a name="line.495"></a>
<span class="sourceLineNo">496</span>                @Override<a name="line.496"></a>
<span class="sourceLineNo">497</span>                public Number apply(Object value) {<a name="line.497"></a>
<span class="sourceLineNo">498</span>                    return AbstractValue.promoteNumeric(session, value, operation);<a name="line.498"></a>
<span class="sourceLineNo">499</span>                }<a name="line.499"></a>
<span class="sourceLineNo">500</span>            }));<a name="line.500"></a>
<span class="sourceLineNo">501</span>            if (Iterables.find(nums, new InstancePredicate(BigDecimal.class), null) != null)<a name="line.501"></a>
<span class="sourceLineNo">502</span>                num = AbstractValue.toBigDecimal(num);<a name="line.502"></a>
<span class="sourceLineNo">503</span>            else if (Iterables.find(nums, new InstancePredicate(Double.class), null) != null)<a name="line.503"></a>
<span class="sourceLineNo">504</span>                num = num.doubleValue();<a name="line.504"></a>
<span class="sourceLineNo">505</span>            else if (Iterables.find(nums, new InstancePredicate(Float.class), null) != null)<a name="line.505"></a>
<span class="sourceLineNo">506</span>                num = num.floatValue();<a name="line.506"></a>
<span class="sourceLineNo">507</span>            else if (Iterables.find(nums, new InstancePredicate(BigInteger.class), null) != null)<a name="line.507"></a>
<span class="sourceLineNo">508</span>                num = AbstractValue.toBigInteger(num);<a name="line.508"></a>
<span class="sourceLineNo">509</span>            else if (Iterables.find(nums, new InstancePredicate(Long.class), null) != null)<a name="line.509"></a>
<span class="sourceLineNo">510</span>                num = num.longValue();<a name="line.510"></a>
<span class="sourceLineNo">511</span>            else<a name="line.511"></a>
<span class="sourceLineNo">512</span>                num = num.intValue();<a name="line.512"></a>
<span class="sourceLineNo">513</span>        }<a name="line.513"></a>
<span class="sourceLineNo">514</span><a name="line.514"></a>
<span class="sourceLineNo">515</span>        // Done<a name="line.515"></a>
<span class="sourceLineNo">516</span>        return num;<a name="line.516"></a>
<span class="sourceLineNo">517</span>    }<a name="line.517"></a>
<span class="sourceLineNo">518</span><a name="line.518"></a>
<span class="sourceLineNo">519</span>    /**<a name="line.519"></a>
<span class="sourceLineNo">520</span>     * Verify object has a numeric type (i.e., {@link Number}).<a name="line.520"></a>
<span class="sourceLineNo">521</span>     *<a name="line.521"></a>
<span class="sourceLineNo">522</span>     * @param session current session<a name="line.522"></a>
<span class="sourceLineNo">523</span>     * @param object Java value<a name="line.523"></a>
<span class="sourceLineNo">524</span>     * @param operation description of operation for error messages<a name="line.524"></a>
<span class="sourceLineNo">525</span>     * @return numeric value<a name="line.525"></a>
<span class="sourceLineNo">526</span>     */<a name="line.526"></a>
<span class="sourceLineNo">527</span>    static Number checkNumeric(ParseSession session, Object obj, String operation) {<a name="line.527"></a>
<span class="sourceLineNo">528</span>        if (!(obj instanceof Number))<a name="line.528"></a>
<span class="sourceLineNo">529</span>            throw new EvalException("invalid " + operation + " operation on " + AbstractValue.describeType(obj, "non-numeric"));<a name="line.529"></a>
<span class="sourceLineNo">530</span>        return (Number)obj;<a name="line.530"></a>
<span class="sourceLineNo">531</span>    }<a name="line.531"></a>
<span class="sourceLineNo">532</span><a name="line.532"></a>
<span class="sourceLineNo">533</span>    /**<a name="line.533"></a>
<span class="sourceLineNo">534</span>     * Convert a {@link Number} to {@link BigDecimal}.<a name="line.534"></a>
<span class="sourceLineNo">535</span>     *<a name="line.535"></a>
<span class="sourceLineNo">536</span>     * @param num number<a name="line.536"></a>
<span class="sourceLineNo">537</span>     */<a name="line.537"></a>
<span class="sourceLineNo">538</span>    static BigDecimal toBigDecimal(Number num) {<a name="line.538"></a>
<span class="sourceLineNo">539</span>        if (num instanceof BigDecimal)<a name="line.539"></a>
<span class="sourceLineNo">540</span>            return (BigDecimal)num;<a name="line.540"></a>
<span class="sourceLineNo">541</span>        if (num instanceof BigInteger)<a name="line.541"></a>
<span class="sourceLineNo">542</span>            return new BigDecimal((BigInteger)num);<a name="line.542"></a>
<span class="sourceLineNo">543</span>        if (num instanceof Double || num instanceof Float)<a name="line.543"></a>
<span class="sourceLineNo">544</span>            return new BigDecimal(num.doubleValue());<a name="line.544"></a>
<span class="sourceLineNo">545</span>        if (num instanceof Long || num instanceof Integer || num instanceof Short || num instanceof Byte)<a name="line.545"></a>
<span class="sourceLineNo">546</span>            return new BigDecimal(num.longValue());<a name="line.546"></a>
<span class="sourceLineNo">547</span>        throw new EvalException("can't convert " + AbstractValue.describeType(num) + " to BigDecimal");<a name="line.547"></a>
<span class="sourceLineNo">548</span>    }<a name="line.548"></a>
<span class="sourceLineNo">549</span><a name="line.549"></a>
<span class="sourceLineNo">550</span>    /**<a name="line.550"></a>
<span class="sourceLineNo">551</span>     * Convert a {@link Number} to {@link BigInteger}.<a name="line.551"></a>
<span class="sourceLineNo">552</span>     *<a name="line.552"></a>
<span class="sourceLineNo">553</span>     * @param num number<a name="line.553"></a>
<span class="sourceLineNo">554</span>     */<a name="line.554"></a>
<span class="sourceLineNo">555</span>    static BigInteger toBigInteger(Number num) {<a name="line.555"></a>
<span class="sourceLineNo">556</span>        return AbstractValue.toBigDecimal(num).toBigInteger();<a name="line.556"></a>
<span class="sourceLineNo">557</span>    }<a name="line.557"></a>
<span class="sourceLineNo">558</span><a name="line.558"></a>
<span class="sourceLineNo">559</span>    static String describeType(Object obj, String... prefix) {<a name="line.559"></a>
<span class="sourceLineNo">560</span>        if (obj == null)<a name="line.560"></a>
<span class="sourceLineNo">561</span>            return "null value";<a name="line.561"></a>
<span class="sourceLineNo">562</span>        return (prefix.length &gt; 0 ? prefix[0] + " " : "") + "value of type " + obj.getClass().getName();<a name="line.562"></a>
<span class="sourceLineNo">563</span>    }<a name="line.563"></a>
<span class="sourceLineNo">564</span>}<a name="line.564"></a>
<span class="sourceLineNo">565</span><a name="line.565"></a>




























































</pre>
</div>
</body>
</html>
